preferredMaintenanceWindow

Configures the maintenance window that you want for the runtime environment. The maintenance window must have the format ddd:hh24:mi-ddd:hh24:mi and must be less than 24 hours. The following two examples are valid maintenance windows: sun:23:45-mon:00:15 or sat:01:00-sat:03:00.

If you do not provide a value, a random system-generated value will be assigned.